Glycin
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| Glycin | |
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| Chemical name | 2-(4-hydroxyphenyl)aminoacetic acid |
| Other names | N-(4-hydroxyphenyl)glycine p-hydroxyanilinoacetic acid photoglycine |
| Chemical formula | C8H9NO3 |
| Molecular mass | 167.16 g/mol |
| CAS number | [122-87-2] |
| Melting point | 248 °C |
| SMILES | OC(CNC1=CC=C(O)C=C1)=O |
| Disclaimer and references | |
Glycin, or N-(4-hydroxyphenyl)glycine, is a derivative of the amino acid glycine. It is a chemical used in photography as a component in developer solutions, often with potassium carbonate. When fresh, it is typically characterized as thin plates of white or silvery powder, turning brown with age. It is sparingly soluble in water and most organic solvents; it is readily soluble in alkalies and acids.
In photography, glycin is rarely used today, primarily because it is relatively expensive and has limited shelf life compared to metol and phenidone. It continues to be manufactured, but by only one chemical house, Photographer's Formulary of Condon, Montana, USA.
[edit] References
- Photographic Chemical Descriptions
- Merck Index, 11th Edition, 4771.
[edit] External links
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